At idle it is a ~500 byte memory leak every minute (it's pretty regular), 30MB leaked per hour. It is either add-on, "feature" related, or based on whether you actually start doing something. The aw device is just sitting idle at the home screen, nothing done there, and it's not showing any leakage. The RPi4 device has been used to playback PVR, videos, youtube, and it is routinely leaking ~500 bytes every minute.
Here is the script mm.sh:
You set permissions to 0700 and run it with ./mm.sh |tee -a mm.csv